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21 Cards in this Set

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  • Back
What are the two semi independent parts of the lymphatic system?
(1)network of lymphatic vessels
(2)Lymphoid tissues and organs that are scattered throughout the body
Lymph transport is aided by muscular and respiratory pumps and by
Contraction of smooth muscle in the walls of the lymphatic vessels
What picks up the excess tisue fluid that is leaked from the blood capillaries?
Porous blind ended lymphatic capilaries
what two ducts allow the lymph to flow back into the vascular system?
Right lymphatic duct
Left thorasic duct
what type of agranular cells are formed within the Lymph nodes
WBCS (lymphocytes)
Phagocytcytic cells
what do the Agranular cells in the lymph nodes remove from the lymph before it is returned to the blood?
Bacteria, Viruses
Along with lymph nodes what are the other lymphoid organs in the body?
Tonsils
Thymus
Peyers patches
Spleen
Removes the bacteria that tries to enter the digestive or respiratory tracts
Tonsils
Prevent bacteria in the intestine from penetrating deeper into the body
Peyers patches
Programming region for some of the lymphocytes of the body
Thymus
RBC graveyard and reservoir for blood
Spleen
If the fluid that is leaked out of the blood is not returned what will occur?
Edema
what pressures force the fluid out of the blood at the arterial ends of the capillary beds?
Osmotic and hydrostatic pressure
True or false
The lymphatic vessels are very porous due to the fact that one of the ends is opened much like that of a straw
False
The walls overlap each other, forming flap like mini valves that act as one way doors opening when fluid pressure is high.
Where does the right lymphatic duct drain lymph from?
Right arm, right side of the head and thorax
Where does the thorasic duct drain lymph from?
The rest of the body
Lymph enters the convex side of the node through
Afferent lymphatic vessels
Lymph leaves the node through the _________ via the efferent lymphatic vessels.
hilus
Why is the flow of the lymph through the node very slow and what does that allow for?
It slows due to fewer amount of efferent vessels than the afferent that feed it

This does however allow time for the lymphocytes and macrophagss to complete their protective fxns.
True or False
One lymph node is able to clean the lymph that flow through due to the slow rate of flow
False
The lymph passses through several nodes before it cleaning process is complete
A setinel to protect the upper respiratory and digestive tracts from neer ending attacks of foriegn matter
MALT
Mucosa Associated Lymphatic Tissue
(tonisils, Peyers Patches)